You can, but I recommend the 32-bit version.
All right...This confirms that your graphic card is ****ed up (I can't find an appropriate word other than that).
This is the very same problem I had, sorry I have with mine. Just buy a new graphic card.
Sorry, but trust me on this that your graphic card is the root cause to your problems.
Windows 7 in gaming < Windows XP in gaming
Because you get better performance on XP.
Well i got a (NOT SO) funny error:Link
[Edited by Wolf-dk1984, 8/13/2010 1:31:46 PM]